Tiltrotor aircraft with fixed engines



FIG. 1 is a front perspective view of the tiltrotor aircraft with fixed engines with the rotor nacelles facing upward;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of the tiltrotor aircraft with fixed engines with the rotor nacelles facing forward;

FIG. 9 is a front elevational view of FIG. 8;

FIG. 10 is a rear elevational view of FIG. 8;

FIG. 11 is a right side elevational view of FIG. 8;

FIG. 12 is a left side elevational view of FIG. 8;

FIG. 13 is a top plan view of FIG. 8; and,

FIG. 14 is a bottom plan view of FIG. 8. 

CLAIM The ornamental design for a tiltrotor aircraft with fixed engines, as shown and described. 